<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
    <head>
        <meta charset="UTF-8">
        <title>Login</title>
    </head>
    <body>
    错误信息：<h4 th:text="${msg}"></h4>
        <form action="" method="post">
            <p>账号：<input type="text" name="username" value="admin"/></p>
            <p>密码：<input type="text" name="password" value="123456"/></p>
            <p><input type="submit" value="登录"/></p>
        </form>
    </body>
</html>